LS Hydraulic lifter limitations

e vassar · 12-06-2021, 11:13 AM

I am running the GM perf LS7 hydraulic lifters in my stocker. It hits a wall in high gear at 7K which occurs between 1000ft and the finish line. Just stops pulling and sometimes has 2-3 light misfires ( banging) . I know the lifters should easily handle 7K ..but is that the limitation? I am running 10-30 oil so staying pumped shouldn't be a problem. I am going to do compression,leak down test and valve spring test as part of off season maintenance. Should I just go ahead and change to solid lifters?... Thanks!

12-06-2021, 11:13 AM	#1
e vassar Member Join Date: Jul 2015 Posts: 380 Likes: 67 Liked 271 Times in 107 Posts	LS Hydraulic lifter limitations I am running the GM perf LS7 hydraulic lifters in my stocker. It hits a wall in high gear at 7K which occurs between 1000ft and the finish line. Just stops pulling and sometimes has 2-3 light misfires ( banging) . I know the lifters should easily handle 7K ..but is that the limitation? I am running 10-30 oil so staying pumped shouldn't be a problem. I am going to do compression,leak down test and valve spring test as part of off season maintenance. Should I just go ahead and change to solid lifters?... Thanks!

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